15 Human Weapons Made from Animal Weapons

Lacking claws, armor, or stabbing teeth, humans are easy targets for predation. But thanks to our big, beautiful brains, we figured out early on how to co-opt the killing tools of nature's top hunters for our own defense—and offense. Here are some of the best examples of technology mimicking nature. Or just straight up stealing from it. Shark Tooth Sword, KiribatiPhoto: imbrettjackson